Even if you’re the sworn enemy of all things bug, you have to have a soft spot for fireflies. They’re harmless, pretty, and they remind you of summer. What’s not to like? When you think about it, though, aren’t fireflies a little… weird? If you’ve read any of our other bug-based blogs, you know that nothing in the bug world happens without a reason. But what reason could fireflies possibly have for lighting up at night? It doesn’t seem like a great way to stay alive, certainly. Come to think of it: how do they light up at night? If you’ve ever watched fireflies twinkling in the distance on a calm summer’s night and thought, “hey, wait, why are they doing that?”, this blog’s for you.